Automatic friction-governor in fly-wheels.



PATENTED JAN. 9, 1906,

'I.'L. CUMMINGS. AUTOMATIC FRICTION GOVERNOR IN FLY WHEELS.

APPLICATION FILED MAY 28. 1904.

lA/VE/VTOH THADDEUS L-GUMM1NG5- I V WIN/8858.

ATTORNEYS the fly-wheel.

UNTTE STATES PATENT @EETCE.

THADDEUS L. CUMMINGS, OF SPENCER, IOWA.

Specification of Letters Patent.

Patented Jan. 9, 1906.

Application filed May 28, 1904. Serial No 210,298.

To all 1077,0777, it nm/g concern.-

Be it known that I, THADDEUS L. CUM- MINGS, a citizen of the UnitedStates, residing at Spencer, in the county of Clay and State of Iowa,have invented a new and improved automatic friction-governor in aflywheel for threshing-machine self-feeders or for any other machinewhere it is desired to gage the speed or stop the motion of the machinewhen the speed falls below that for which it is set, of which thefollowing is a full, clear, and exact description.

My invention is a friction-governor; and it consists in certain novelconstructions and combinations of parts hereinafter described andclaimed.

Referring to the drawings forming a part hereof, Figure 1 is a frontview of my invention. Fig. 2 is a view from the opposite side thereof. Fig. 3 is a vertical longitudinal section, and Fig. 4 is a view of thefly-wheel alone.

In the practical application of my inven tion I provide a fly-wheel B,keyed or other wise secured to a drivingshaft A and comprising a hub anda peripheral ring connected thereto by four spokes. Two of the oppositespokes are provided with pins 12, engaging one of a series of holes G incurved levers E. The levers E are provided at corresponding ends withthe balls 13. Cotterpins 12 secure the levers in place, and springs 14,secured at one end to the levers and at the other to hooks 15 on thehub, retain them normally in an inward position.

Rockarms 18, pivoted upon brackets 20, projecting from the rear face ofthe abovenamed spokes, are provided with forwardlyextended arms 17 forengagement by the curved levers E. A spring 27, secured to bolts 28,traversing the free ends of the arms 17 and secured in place by nuts 29,maintains the arms in contact with the curved levers, while a projection17 overlapsthe curved lever and retains it against the face ofInwardly'projecting arms 21 on the rock-shafts 18 are provided withbrake-shoes 23, secured to plates 22 on said arms and adapted to engagethe rear face of a disk C, loosely mounted on the driving member A. Uponthe aforementioned spokes, adjacent to the brackets 20, plates 26 aresecured, provided on their free faces with brake-shoes 25 for engagingthe forward face of the disk, and a sprocket-wheel D, integral rear faceof the diskand moving said disk into contact with the brake-shoes on theflywheel, thus locking the disk and f1y-wheel together.

The degree of speed necessary to impart motion to the .disk C may bevaried by lengthening or shortening the end of the curved leversprovided with the balls, the longer the lever the less centrifugal forcerequired to move the balls outward.

It will be evident that when the speed of the fly-wheel falls below thepredetermined point the disk will be released, while an increase ofspeed increases the strength of the grip.

l/Vhat I claim is 1. In an apparatus of the class described, thecombination of a driving member, a flywheel secured thereto,oppositely-disposed forwardly-projecting pins 011 the iiy-wheel,oppositely-disposed curved levers each pro vided with a series ofperforations for engaging the pins, cotter-pins for securing the levers011 the pins, springs normally retaining the levers in their inwardpositions, balls on the corresponding ends of the levers,oppositely-disposed rearwardly-projecting brack ets on the fly-wheel,brake-shoes 011 the face of the fly-wheel adjacent to the brackets,rock-levers pivoted to the brackets and provided withforwardly-extending arms for engaging the levers, a spring connectingthe forwardly-extending arms, inwardlypxtending arms on the rock-shaft,and provided with brake-shoes, a disk loosely mounted on the drivingmember for engaging the brakeshoes on the fly-wheel and for engagementby the brake-shoes on the inwardly-extending arms of the rock-shafts.

2. In an apparatus of the class described, the combination of a drivingmember, a flywheel secured thereto, oppositely-disposedforwardly-projecting pins on. the fly-wheel, oppositely-disposed curvedlevers each provided with a series of perforations for engaging thepins, means for securing the levers on the pins, a spring forrestraining the levers in their inward positions, balls on thecorresponding ends of the levers, oppositely disposedrearwardly-projecting brackets on the fly-wheel, brake-shoes adjacent tothe brackets, and secured to the fly-wheel, rocklevers pivoted to thebrackets and provided with forwardly-extending arms for engaging thelevers,,a spring connecting the forwardly extending arms, inwardlyextending arms on the rock-shaft, a disk loosely mounted on the drivingmember, and means on the inwardly-extending arms of the rockshaft forengaging the disk and forcing the same against the brake-shoes on theflywheel.

3. In an apparatus of the class described, the combination with adriving member, of a fly-wheel secured thereto, oppositely-disposedcurved levers pivoted on the front face of the fiy-wheel and providedwith balls at their free ends, rearwardly-projecting brackets on thefly-wheel, rock-shafts pivoted in the brackets and each provided with aforwardly-extending arm for engaging the curved levers, brake-shoessecured to the fly-wheel adjacent to the brackets, a disk looselymounted on 1 the driving member, and means on the rockshaft for engagingthe disk and forcing the same into contact with the brake-shoes on thefiy-wheel.

4. In a friction-governor, the combination of the driving member, afly-wheel secured thereto, oppositely disposed curved levers pivoted onthe forward face of the flywheel and provided with balls at their freeends, rock-shafts pivoted on the rear face of the fly-wheel, means onthe rock-shafts for engaging the curved levers, a disk loosely mountedon the driving member,- and means on the rock-shafts for engaging therear face of the disk to force the same into contact with the fly-wheel.

5. In a friction-governor, the combination of the driving member, afly-wheel secured thereto, weighted levers pivoted on the front face ofthe fly-wheel, rock-shafts pivoted on the rear face of the fly-wheel, adisk loosely mounted on the driving member, an arm on each rock-shaftfor engagement by the weighted levers, and means on the rockshafts forengaging the disk to force the same into contact with the fly-wheel.

6. In a friction-governor, the combination of a driving member, afly-wheel secured thereto, a disk loosely mounted on the driving member,means on one face of the fly wheel for forcing the disk into contacttherewith, and means on the other face of the flywheel to actuate saidengaging means, on the attainment of a predetermined speed by thedriving member.

7. In a friction-governor the combination of a driving member, afly-wheel secured thereto, a driven member adjacent to the fly-wheel,means on one face of the flywheel for engaging the driven member, andmeans on the other face for actuating said engaging means on theattainment of a predetermined speed by the driving member.

In testimony whereof I have signed my name to this specification in thepresence of I two subscribing witnesses.

THADDEUS L. CUMMINGS. Witnesses: HIRAM O. GREEN, J. W. CORY.

